| 摘要 |
<p>The inks contain a water-miscible organic solvent and a dye of the general formula (I> Fa-(-X)n (I> where X is -CH2-NH2 or <IMAGE> where R<1> and R<2> are each -H, -CH3 or -CH2CH2OH, R<3> is H or -CH3 and A<(-)> is an anion, and Fa is an n-valent radical of a monoazo, diazo or polyazo dye, of a quinophthalone, of a bisdioxazine, of a 2,7-diphenylxanthene dye or of a copper phthalocyanine, and n is from 1 to 4 or, when n is 1 and Fa is the radical of a quinophthalone or of a 2,7-diphenylxanthene dye, X may also be <IMAGE> where F'a is a divalent radical of a quinophthalone or of a 2,7-diphenylxanthene dye and m is >/= 1. If Fa is a copper phthalocyanine or 2,7-diphenylxanthene, X may also be -CH2-NH-CO-(CH2)z-Y, where Y is <IMAGE> R<4> and R<5> are each independently of the other C1-C6-alkyl, hydroxyethyl, hydroxypropyl or cyclohexyl, or <IMAGE> is piperidinyl or pyrrolidinyl, and R<6> is methyl, ethyl or hydroxyethyl or <IMAGE> is pyridinium or picolinium, and z is 1 or 2. The recordings obtained with these inks are resistant to overbrushing with customary marker pens and to rubbing with moist fingers.</p> |
